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Shenzhen NTEK Testing Technology Co., Ltd.

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Hot Line 400-800-6106
NTEK Group
Tel:+8618923705875 Q Q:61827361 Email:ntek@ntek.org.cn Blocks C, D and E of Fenda Science and Technology Creative Park, Xixiang, Baoan District, Shenzhen

Coating VOC testing

Basic introduction

In order to promote energy conservation and environmental protection, with the approval of the State Council, a consumption tax has been levied on coatings with a Volatile Organic Compounds (VOC) content greater than 420g / L under construction from February 1, 2015.
Coating refers to a general term for a class of liquid or solid materials that can be applied to the surface of an object to form a solid coating film with protection, decoration, or special properties.
The Chinese coatings industry defines VOCs as "any organic compound with an initial boiling point below 250 ° C at a standard pressure of 101.3kPa.

Standard test

GB 18581-2009 "Limits of Harmful Substances in Solvent-based Wood Coatings for Interior Decoration Materials"
GB 18582-2008 "Limits of harmful substances in interior coatings for interior decoration materials"
GB 24613-2009 "Limits of Hazardous Substances in Coatings for Toys"
GB 24410-2009 "Limits of Harmful Substances in Waterborne Wood Coatings for Interior Decoration Materials"
GB 24408-2009 "Limits of Hazardous Substances in Exterior Coatings for Buildings"
GB / T 1725-2007 "Determination of nonvolatile matter content in paints, varnishes and plastics"
GB / T 23985-2009 "Determination of volatile organic compounds (VOC) content in paints and varnishes by difference method"
GB / T 23986-2009 "Determination of volatile organic compounds in coatings and varnishes-Part 2 Gas chromatography"
HJ 2537-2014 "Technical Requirements for Environmental Labeling Products"

Test product range

The paint is composed of a main film-forming substance, a secondary film-forming substance, and the like.
Coatings based on main film-forming substances: greases, natural resins, phenolic resins, asphalts, alkyd resins, amino resins, nitros, filtered vinyl resins, olefin resins, acrylate resins, Polyester resins (water-based coatings), epoxy resins, polyurethane resins, elemental organics, rubbers, celluloses, and other film-forming materials. (Including solvent-borne and water-based coatings.)
Testing of auxiliary film-forming materials in individual resins, curing agents, thinners, and coatings is not required.
In order to promote energy conservation and environmental protection, with the approval of the State Council, a consumption tax has been levied on coatings with a Volatile Organic Compounds (VOC) content greater than 420g / L under construction from February 1, 2015.

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